diff --git a/Gemfile b/Gemfile
index 3c96123..6ed5311 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,7 @@ source 'https://rubygems.org'
 
 gemspec
 
-gem 'minitest', '~> 5.25', require: false
+gem 'minitest', '~> 6.0', require: false
 gem 'moji', '~> 1.6', require: false
 gem 'rake', '~> 13.0', require: false
 gem 'rbs-inline', '~> 0.12.0', require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index b9fb189..f52556d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,11 +7,14 @@ GEM
   remote: https://rubygems.org/
   specs:
     ast (2.4.3)
+    drb (2.2.3)
     json (2.12.2)
     language_server-protocol (3.17.0.5)
     lint_roller (1.1.0)
     logger (1.7.0)
-    minitest (5.27.0)
+    minitest (6.0.6)
+      drb (~> 2.0)
+      prism (~> 1.5)
     moji (1.6)
     parallel (1.27.0)
     parser (3.3.8.0)
@@ -54,7 +57,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  minitest (~> 5.25)
+  minitest (~> 6.0)
   moji (~> 1.6)
   neologdish-normalizer!
   rake (~> 13.0)